Abstract :
[en] Recent studies about mutualism are considering the complexity and versatility of the relation as well as highlighting the importance of the cost/benefit balance between the two protagonists. As species interactions are highly dependent on the environment, the climate changes that are foreseen for the coming years, are expected to have significant impacts on the evolution of mutualistic interactions. Among mutualisms, the aphid-ant interaction is well documented, partly explained by the pest status of aphids. This literature review focuses on the impact of climate change (particularly atmospheric carbon dioxide concentration and temperature) on aphids’ biology and the potential consequences on their mutualistic interactions with ants. We provide an overview of the published reports that deal with the effects of temperature and carbon dioxide on aphids, for which a positive, a negative or a no-effect was highlighted. A discussion is then provided on how climatic changes can alter four major components of aphid biology that are shaping their interaction with ants: (1) aphid population growth, (2) aphid behavior and mobility, (3) honeydew production and composition, and (4) semiochemistry. At the end of the review, we discuss limits to such studies on aphid-ant mutualism as well as the information still needed to predict how climate change might impact this kind of relationship.
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